Watch Drones used to map ganja cultivation areas here. This news was telecasted on Wednesday 20th of September 2017 09:00:06 AM in TV9 News Channel. TV9 is one of the best news channel in Andhra Pradesh Started in 2004. . Visit us for all AP local, National, International, Political, Breaking, Andhra, Telugu News from all channels.Drones used to map ganja cultivation areas video news updates online.